Lot
1602 
DuPont Explosives, multicolor design on 1910 cover showing Man Stacking Powder Boxes, franked with 2¢ Washington-Franklin (DuPont perfin) tied by Pittsburg, Pa. machine cancel, multicolor all-over ad on reverse, Extremely Fine, choice with the DuPont perfin. Estimate $200 - 300.
Realized: $575